The railway line and canal are less than 50 metres apart at this
point. The pub also used to be between 2 steelworks, but 'Unbrako' has closed and only Kiveton Park Wire Works survives. If you look at the
Chesterfield Canal restoration page
you'll see the canal bridge that lies a few metres to the right of
the signal box. The 100 year old beer bottle was possibly bought in
the Old Station pub, and chucked into the canal from that
bridge.